Stop watch



FIG. 1 is a top view of stop which watch showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a right view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a rear view thereof; and,

FIG. 7 is a front right perspective view thereof.

The ornamental design for a stop watch, as shown and described.